Guy-anchor.



H. M. THOMAS.

GUY ANCHOR. APPLIQATION FILED MAY 12, 1908.

for

Patented Sept. 22, 1908.

l// v 7 4 0f J Q a 1/ Smack Wm machines, drills the appended claims.

wires and the lik HOWELL M. moms, or COLORADO sPRmesooLoRADo. summons.

No. seaem.

To all who-m itmay concern:

Be'it' known that I, HOWELL M. THOMAS, a. citizen of'the United States, residin at Colorado Sprin s, in the county of. El aso and State of Colorado, have invented a new and useful Guychor,'of which the following is a specification.

' his invention relates to anchors for guy e and more particularly to an anchor especially designed for use in coal mines for anchoring-the guy wires ofcutting and similar machinery. The Object of. the invention is to provide an anchor including a stem having a sup ortmg member slidably mounted thereon an carrymg a plurality of anchoring-spurs or arms,

said arms or. spurs being adapted to be embedded in the coal by a cone shaped block or expander when a longitudinal pull is exerted on the stem.

A further ob'ect is to form the stem with a circumferentia groove or depression to permit free lateral movement of-the arms or spurs when the same are moved to expanded position. i

A still further object of the invention is generally to improve this class of devices so as to increase their-utility, durability and efficiency as well as to reduce the cost of manufacture. Further objects and advantages will appear in the following description, it being understood that various changes in form, proportions and minor details of construction may be resorted to within the scope. of

In the accompanying drawings for l a part of this specification: Figure 1 is a side elevation part y in section of structed' in accordance with my invention showing the arms in position to be embedded in the ground. 'Fig. 2 is a side elevation Fig. 3 is a transverse sectiona viewv taken on the line 3'3 of- Fig. 1. Similar numerals of reference indicatecorresponding parts in all of the figures of the drawings. v The improved anchor forming the subjectmatter of the present invention includes a shank or stem 5 having one end thereof threaded at 6 and its opposite end rovided with a-hook ,7 for engagement wit a wire 8. Slidably mounted on the stem 5 1s a an anchor con i l Specification of Letters Patent.

Application filed m 12, 190a Serial No. 432,408.

x Detachably su porting frame havin ""a pluralit of s paced arms 9 betweeg each set of which is pivotall mounted at ".10 ananchoring arm or memlier 11, the free end of which .is extendedlaterally to form a s ur 12 adapted .to be embedded in the ground when a lon itu- 'dinal pull is exerted on the hooked end 0 the stem.

the stem -5 is ing a socket formed in the reduced end thereof, the interior walls of which are threaded for en agement with the threads 6 on the stem.

' isposed at the threaded portionfi of the shoulder 14 which bears against the adjacent end of the cone-or of sets Patented Sept. '22, 1908.

secured to the threaded end-of a cone shaped member 13 hav.

expander 13 and serves to limit the longitulnal movement of the same.

That portion of the ed end 6 is provided with a circumferential groove or depression 15 which accommodates the pivoted-end of the arms 11 when the supporting frame registers with the groove 15 and the arms 11 are swung outwardly for engagement with the ground, thereby to prevent binding or wedging action of the arms against the stem when said arms are moved to extended position. y In operation a hole or excavation is formed other suitable tool and the supporting frame moved longitudinally of the stem in the direction of the hook 7 so that the bills of the spurs 12 will be disposed within the lines of t The device is e cone or expander 13.

ole or excavatlon and then inserted in the h stem 5 near the threadin the coal by means of a drill or a longitudinal pull exerted on the guy wire v 8 totighten or regulate the tension of said pull exerted by the wire. The longitudinal e stem or shank5 causes the guy'wire'S on t mcl1ned face of the cone 13 to engage the inclined or beveled portion 17 of the armsand force the spurs 12 of said arms into the walls of the excavation thereby eflectually anchoring the guy wire and preventin dis lacement of the anchoring ld'bile the device is for anchoring the guy accidental evice.

wires of cutting mavchmes it is obvious that the same may be used with e derricks, te wherever a desirable.

ually good egraph device of results for anchoring poles and the like or this character is found It will also be understood that as many principally designed ivoted arms may be employed as is found frame and provided with laterally extendin desirable or necessary to secure a firm ans urs, a cone bearing against the stop shou chorage for the uy wire. er and having a threaded socket formed Having thus escribed the invention what therein for engagement with the threaded 5 is claimedis: end of the stem, said cone being ada ted to 1. A device of the class describedincluding expand the arms when a longitudina pull is a stem having one end thereof provided with exerted on the guy wire, there being an anmeans for attachment to a guy wire, a frame nular groove formed in the stem at said 'slidably mounted on the stem, anchoring shoulder to permit free lateral movement of arms pivotally connected with the frame, the anchoring arms. 7

and an expander carried by the opposite 4. Adevice of the class described including end of the stem for moving the arms to exa stem cylindrical in cross section and having panded position when a longitudinal pull is one end thereof bent to form a hook for enexerted on the guy wire, there being a cirgagement with a guy wire and its opposite cumferential groove formed in the stem ,to end provided with a threaded extension de- 55 permit free lateral movement of the anfining a stop shoulder, there being an anchoring arms. nular groove formed in the walls of the stem 2. A device of the class describedincluding at said stop shoulder, a frame slidably a stem having one end thereof threaded and mounted on the stem between the stop its opposite end bent to form a hook for enshoulder and hooked portion thereof and so gagement with a guy wire, a frame slidably having a plurality of sets of spaced arms, mounted on the stem, anchoring arms pivanchoring arms ivotally mounted between otally mounted in the frame and rovided the arms of the rame and having their free with laterally extending spurs, an a cone ends extended laterally to form s urs, the engaging the threaded end of the stem and free ends of the arms at said spurs eing in- 65 adapted to engage the anchoring arms for clined or beveled; and a cone bearing against moving the same to expanded osition when the shoulder and provided with a threaded 4 a longitudinal pull is exerte on the guy socket for engagement with the threads on wire, there being a circumferential groove the shank, said cone being adapted to enformed in the stem at the threaded end of gage the inclined ortions of the anchoring 70 the latter for registration with the slidin s urs for moving t e latter to expanded poframe when the arms are moved to expande sition when a longitudinal pull is exerted on position. the guy wire.

3. A device of the class described including In testimony that I claim the foregoing as a stem having one end thereof bent to form my own, I have hereto affixed my signature 75 a hook for enga ement with a guy wire and in the presence of two witnesses. its opposite en provided with a'threaded HOWELL ,M. THOMAS) extension defining an annular stop shoulder, Witnesses: a frame slidably mounted on the stem, an- T. E. THOMAS,

40 choring arms pivotally mounted in the JOHN FERGUSON. 

